Thermometer



FIG. 1 is a front perspective view of a thermometer showing the new design;

FIG. 2 is a back perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side elevational view thereof;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a top view thereof;

FIG. 8 is a bottom view thereof;

FIG. 9 is a other perspective view thereof;

FIG. 10 is a use of state view thereof; and,

FIG. 11 is a other design reference view.

The broken lines shown represent unclaimed subject matter and form no part of the claimed design. 

CLAIM The ornamental design for a thermometer, as shown and described. 